CN116066392B - Method, device, equipment and storage medium for monitoring cooling fan - Google Patents
Method, device, equipment and storage medium for monitoring cooling fan Download PDFInfo
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- CN116066392B CN116066392B CN202310140188.9A CN202310140188A CN116066392B CN 116066392 B CN116066392 B CN 116066392B CN 202310140188 A CN202310140188 A CN 202310140188A CN 116066392 B CN116066392 B CN 116066392B
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- 238000001816 cooling Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 238000012806 monitoring device Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 67
- 230000005855 radiation Effects 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 abstract description 71
- 239000000428 dust Substances 0.000 abstract description 15
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000004891 communication Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013507 mapping Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The application belongs to the technical field of cooling fans, and discloses a cooling fan monitoring method, a cooling fan monitoring device, cooling fan monitoring equipment and a storage medium. The method and the device acquire the current driving voltage of the cooling fan in the projector and the current environment temperature of the projector during operation; searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature; and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced. When the heat dissipation efficiency of the heat dissipation fan is reduced due to the phenomena of dust accumulation and the like, in order to maintain the normal operation of the projector, the driving voltage of the heat dissipation fan needs to be increased to increase the rotating speed of the heat dissipation fan, and the current driving voltage is compared with the pre-calibrated standard fan driving voltage, so that whether the heat dissipation efficiency of the heat dissipation fan is reduced can be rapidly determined.
Description
Technical Field
The present invention relates to the field of cooling fans, and in particular, to a cooling fan monitoring method, device, apparatus and storage medium.
Background
The heat dissipation system of the projector is an important system in the projection system, and the core component of the heat dissipation system is the heat dissipation fan, so that the working efficiency and stability of the heat dissipation fan are important for the projector, dust can be deposited on the heat dissipation fan along with the increase of the service time of the projector, the wind resistance is increased when the heat dissipation fan rotates, the rotation speed is reduced, the heat dissipation efficiency is reduced, and even the projector is damaged, therefore, when the heat dissipation efficiency of the heat dissipation fan is reduced, a user is required to be timely prompted to overhaul so as to avoid the damage of the projector.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for monitoring a cooling fan, and aims to solve the technical problem that the cooling efficiency of the cooling fan in a projector cannot be found out in time in the prior art.
In order to achieve the above object, the present invention provides a cooling fan monitoring method, which is applied to a projector, and the method comprises the following steps:
acquiring the current driving voltage of a cooling fan in the projector and the current environment temperature of the projector during operation;
Searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature;
and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced.
Optionally, the step of determining that the heat dissipation efficiency of the heat dissipation fan is reduced if the current driving voltage is greater than the standard fan driving voltage includes:
if the current driving voltage is larger than the standard fan driving voltage, calculating a voltage difference value according to the current driving voltage and the standard fan driving voltage;
Determining a voltage increment ratio according to the voltage difference and the standard fan driving voltage;
and if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced.
Optionally, after the step of determining the voltage increment ratio according to the voltage difference and the standard fan driving voltage, the method further includes:
if the voltage increment proportion is smaller than or equal to a preset judgment threshold value, acquiring the current moment;
determining a re-detection time according to the current time and the first preset detection interval duration;
and if the system time reaches the re-detection time, returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates.
Optionally, the step of determining the re-detection time according to the current time and the first preset detection interval duration includes:
Comparing the voltage increment ratio with a preset risk threshold value, wherein the preset risk threshold value is smaller than the preset judgment threshold value;
And if the voltage increment proportion is smaller than or equal to the preset risk threshold, determining a re-detection time according to the current time and a first preset detection interval duration.
Optionally, after the step of comparing the voltage increment ratio with a preset risk threshold, the method further includes:
And if the voltage increment ratio is larger than the preset risk threshold, determining a re-detection time according to the current time and a second detection interval time, wherein the second detection interval time is smaller than the first preset detection interval time.
Optionally, the step of searching the corresponding standard fan driving voltage in the preset standard information table according to the current ambient temperature includes:
Acquiring a temperature interval to which the current ambient temperature belongs, and acquiring a target temperature interval;
and searching a corresponding standard fan driving voltage in a preset standard information table according to the interval identification of the target temperature interval.
Optionally, after the step of determining that the heat dissipation efficiency of the heat dissipation fan is reduced if the current driving voltage is greater than the standard fan driving voltage, the method further includes:
Generating fan alarm information according to the current environment temperature, the current driving voltage and the standard fan driving voltage;
and sending the fan alarm information according to a preset alarm mode to prompt a user to overhaul the fan.
In addition, in order to achieve the above object, the present invention also provides a cooling fan monitoring device, which includes the following modules:
the data acquisition module is used for acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature of the projector during operation;
the data searching module is used for searching the corresponding standard fan driving voltage in a preset standard information table according to the current environment temperature;
And the efficiency monitoring module is used for judging that the heat dissipation efficiency of the heat dissipation fan is reduced if the current driving voltage is larger than the standard fan driving voltage.
In addition, to achieve the above object, the present invention also proposes a cooling fan monitoring apparatus including: the system comprises a processor, a memory and a radiator fan monitoring program which is stored in the memory and can run on the processor, wherein the radiator fan monitoring program realizes the steps of the radiator fan monitoring method when being executed by the processor.
In addition, in order to achieve the above object, the present invention also proposes a computer-readable storage medium having a cooling fan monitoring program stored thereon, which when executed implements the steps of the cooling fan monitoring method as described above.
The method and the device acquire the current driving voltage of the cooling fan in the projector and the current environment temperature of the projector during operation; searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature; and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced. When the heat dissipation efficiency of the heat dissipation fan is reduced due to the phenomena of dust accumulation and the like, in order to maintain the normal operation of the projector, the driving voltage of the heat dissipation fan needs to be increased to increase the rotating speed of the heat dissipation fan, and the current driving voltage is compared with the pre-calibrated standard fan driving voltage, so that whether the heat dissipation efficiency of the heat dissipation fan is reduced can be rapidly determined.
Drawings
FIG. 1 is a schematic diagram of an electronic device of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of a method for monitoring a cooling fan according to the present invention;
FIG. 3 is a flowchart illustrating a method for monitoring a cooling fan according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a third embodiment of a cooling fan monitoring method according to the present invention;
fig. 5 is a block diagram of a first embodiment of a cooling fan monitoring device according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a cooling fan monitoring device in a hardware running environment according to an embodiment of the present invention.
As shown in fig. 1, the electronic device may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (WI-FI) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Those skilled in the art will appreciate that the structure shown in fig. 1 is not limiting of the electronic device and may include more or fewer components than shown, or may combine certain components, or may be arranged in different components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a cooling fan monitoring program may be included in the memory 1005 as one type of storage medium.
In the electronic device shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the electronic device of the present invention may be disposed in a cooling fan monitoring device, where the electronic device invokes a cooling fan monitoring program stored in the memory 1005 through the processor 1001, and executes the cooling fan monitoring method provided by the embodiment of the present invention.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a method for monitoring a cooling fan.
In this embodiment, the cooling fan monitoring method is applied to a projector, and the cooling fan monitoring method includes the following steps:
Step S10: the current driving voltage of the cooling fan in the projector and the current environment temperature of the projector during operation are obtained.
The execution body of the embodiment may be the cooling fan monitoring device, and the cooling fan monitoring device may be a projector itself or may be another device capable of controlling the projector, which is not limited in this embodiment, and in the present embodiment and the embodiments described below, the cooling fan monitoring method of the present invention is described by taking the cooling fan monitoring device as an example.
The current driving voltage of the cooling fan may be the driving voltage of the cooling fan at the current time when the cooling fan is running. The current ambient temperature when the projector is operating may be a temperature of an ambient environment around the projector when the projector is operating, such as a temperature sensor provided on the projector to detect the temperature of the ambient environment around the projector.
Step S20: and searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature.
It should be noted that the preset standard information table may be a data table storing a mapping relationship between a standard fan driving voltage and an ambient temperature value, where different ambient temperatures correspond to different standard driving voltages. It can be understood that the higher the ambient temperature, the larger the set standard driving voltage, wherein the standard fan driving voltage can be the driving voltage of the cooling fan in the environment temperature value, which meets the cooling requirement of the projector and can be normally and stably operated.
In a specific implementation, searching for the corresponding standard fan driving voltage in the preset standard information table according to the current ambient temperature may be searching for the standard fan driving voltage corresponding to the current ambient temperature in the preset standard information table.
Further, since the temperature values are extremely large in intervals, if the temperature values are calibrated for each temperature value, the workload is too large, and the ambient temperature is relatively similar, and the change of the driving voltage is actually small, so that in order to reduce the workload, a plurality of temperature intervals can be set, then the standard fan driving voltage is calibrated for the temperature intervals, and the mapping relationship between the calibrated standard fan driving voltage and the temperature intervals is stored in the preset standard information table, then the mode of searching the standard fan driving voltage also needs to make a corresponding change, and at this moment, step S20 can include:
Acquiring a temperature interval to which the current ambient temperature belongs, and acquiring a target temperature interval;
and searching a corresponding standard fan driving voltage in a preset standard information table according to the interval identification of the target temperature interval.
It should be noted that, the obtaining the temperature interval to which the current environmental temperature belongs may be that the current environmental temperature is matched with a plurality of preset temperature intervals, and the temperature interval in which the current environmental temperature is located is determined, so as to determine the target temperature interval.
In a specific implementation, because the temperature interval is an interval value, the processing is complex during query, and the temperature interval and the standard fan driving voltage are directly stored in the preset standard information table, so that the query efficiency is low, therefore, corresponding interval identifiers can be set for each preset temperature interval, then the interval identifiers are utilized to replace the temperature interval to construct a mapping relation between the temperature interval and the standard fan driving voltage, and then the mapping relation is stored in the preset standard information table, when the query is performed, the target temperature interval is determined, and the corresponding standard fan driving voltage can be quickly searched in the preset standard information table according to the interval identifier corresponding to the target temperature interval.
Step S30: and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced.
It should be noted that, when the cooling fan is running, dust can be gradually deposited on the fan blades, and the wind resistance of the cooling fan can be increased in the dust deposition process, and the cooling efficiency can be reduced, so that the projector can increase the driving voltage of the cooling fan, and the rotating speed is increased, thereby ensuring the normal operation of the projector.
It is understood that if the current driving voltage is greater than the standard fan driving voltage, it means that the driving voltage is increased due to dust accumulation of the fan, and thus it can be determined that the heat dissipation efficiency of the heat dissipation fan is reduced. When judging that the heat radiation efficiency of the heat radiation fan is reduced, sending the fan alarm information to prompt a user to overhaul the fan, such as ash removal or replacement of the heat radiation fan.
The current driving voltage of the cooling fan in the projector and the current environment temperature of the projector in operation are obtained; searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature; and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced. When the heat dissipation efficiency of the heat dissipation fan is reduced due to the phenomena of dust accumulation and the like, the driving voltage is reduced, and the current driving voltage is compared with the pre-calibrated standard fan driving voltage, so that whether the heat dissipation efficiency of the heat dissipation fan is reduced can be rapidly determined.
Referring to fig. 3, fig. 3 is a flowchart illustrating a method for monitoring a cooling fan according to a second embodiment of the present invention.
Based on the above first embodiment, the method for monitoring a cooling fan according to the present embodiment includes:
Step S301: and if the current driving voltage is larger than the standard fan driving voltage, calculating a voltage difference value according to the current driving voltage and the standard fan driving voltage.
It should be noted that, the cooling fan actually has only a small amount of dust deposit, and may also cause the driving voltage to rise, so that the current driving voltage is greater than the standard fan driving voltage, at this time, the amount of dust deposit is small, although the cooling efficiency of the cooling fan is reduced, the cooling fan can also support the normal operation of the projector, and maintenance is not required, so when the current driving voltage is greater than the standard fan driving voltage, the voltage difference can be calculated according to the current driving voltage and the standard fan driving voltage, so as to facilitate judging whether the cooling fan is a small amount of dust deposit.
In practical use, the voltage difference calculated from the current driving voltage and the standard fan driving voltage may be a difference between the current driving voltage and the standard fan driving voltage, and the difference is taken as the voltage difference.
Step S302: and determining a voltage increment ratio according to the voltage difference value and the standard fan driving voltage.
It should be noted that, the voltage increment ratio may be determined according to the voltage difference and the standard fan driving voltage, and the ratio of the voltage difference to the standard fan driving voltage may be used as the voltage increment ratio.
Step S303: and if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced.
It should be noted that, the preset determination threshold may be preset by a manager of the cooling fan monitoring apparatus according to an actual situation.
It can be understood that if the voltage increment ratio is greater than the preset determination threshold, the driving voltage of the cooling fan increases more, and at this time, the cooling fan is not only small in dust accumulation, and may not meet the heat dissipation requirement in the normal operation process of the projector, so that it can be determined that the heat dissipation efficiency of the cooling fan is reduced.
Further, if the heat dissipation efficiency of the heat dissipation fan is reduced, the heat dissipation fan may not meet the heat dissipation requirement in the normal operation process of the projector, and the projector may be damaged if the projector continues to operate, so as to avoid such a phenomenon, the step S30 of this embodiment may further include:
Generating fan alarm information according to the current environment temperature, the current driving voltage and the standard fan driving voltage;
and sending the fan alarm information according to a preset alarm mode to prompt a user to overhaul the fan.
It should be noted that, generating the fan alarm information according to the current ambient temperature, the current driving voltage and the standard fan driving voltage may be to obtain a preset alarm information template, and then fill the current ambient temperature, the current driving voltage and the standard fan driving voltage into the preset alarm information template, so as to generate the fan alarm information. Wherein, preset warning information template and preset warning mode can all be set up in advance by radiator fan monitoring facilities's administrator, and preset warning mode can include: telephone, mail, short message, software prompt box, etc.
It can be understood that the fan alarm information is sent according to the preset alarm mode to prompt the user to overhaul the fan, so that the user can quickly and clearly determine that the cooling fan has a large amount of dust accumulation, the cooling efficiency is reduced, and the dust removal or the replacement of the cooling fan is performed. After sending the fan alarm information, the temperature of each heating device (such as a light source, a spatial light modulator, a main board chip and the like) in the projector can be continuously monitored, and when the temperature value of the heating device is too high, the projector can be turned off to avoid damage of the projector. The spatial light modulator may be a DMD or an LCD, among others.
In this embodiment, if the current driving voltage is greater than the standard fan driving voltage, a voltage difference is calculated according to the current driving voltage and the standard fan driving voltage; determining a voltage increment ratio according to the voltage difference and the standard fan driving voltage; and if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced. Because the more the cooling fan deposits, the more the driving voltage is increased, therefore, the deposition amount of the cooling fan can be determined through the voltage increment proportion, and when the voltage increment proportion exceeds a certain threshold, the cooling efficiency of the cooling fan is judged to be reduced when the cooling fan cannot meet the cooling requirement in the normal operation process of the projector, so that the number of times of prompting a user can be reduced, and the use experience of the user is improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of a cooling fan monitoring method according to the present invention.
Based on the above second embodiment, the method for monitoring a cooling fan according to the present embodiment further includes, after the step S302:
Step S303': and if the voltage increment ratio is smaller than or equal to a preset judgment threshold value, acquiring the current moment.
It should be noted that, if the voltage increment ratio is smaller than or equal to the preset determination threshold, this indicates that the heat dissipation efficiency of the heat dissipation fan is reduced, but normal operation of the projector may be supported, but the heat dissipation efficiency of the heat dissipation fan is reduced, so that when the heat dissipation efficiency is reduced too much, it may be found in time that the heat dissipation efficiency is reduced, and after a certain period of time, the detection may be performed again, so that the task of timing execution may be set to perform the detection again, and at this time, the current time may be used. The current time may be a current system time of the cooling fan monitoring device.
Step S304': and determining the re-detection time according to the current time and the first preset detection interval duration.
It should be noted that, the first preset detection interval duration may be preset by a manager of the cooling fan monitoring device according to actual needs, for example: the first preset detection interval duration is set to 3 minutes. Determining the re-detection time according to the current time and the first preset detection interval time may be adding the current time and the first preset detection interval time, so as to obtain the re-detection time.
Further, in order to reasonably detect the cooling fan, step S304' in this embodiment may include:
Comparing the voltage increment proportion with a preset risk threshold;
And if the voltage increment proportion is smaller than or equal to the preset risk threshold, determining a re-detection time according to the current time and a first preset detection interval duration.
It should be noted that, the preset risk threshold may be preset by a manager of the cooling fan monitoring device according to actual needs, where the preset risk threshold is smaller than a preset determination threshold, for example: assuming that the preset decision threshold is 40%, the preset risk threshold may be set to 3/4 of the preset decision threshold, i.e., 30%.
In a specific implementation, if the voltage increment ratio is smaller than or equal to the preset risk threshold, the value indicating the voltage increment ratio is smaller and the distance from the preset judgment threshold is larger, and then the cooling fan can be detected again after a longer time interval, so that the detection time can be determined again according to the current time and the first preset detection interval duration.
If the voltage increment ratio is greater than the preset risk threshold, the value indicating that the voltage increment ratio is greater at this time and has already approached the preset decision threshold, and at this time, although the cooling fan can still maintain the normal operation of the projector, more dust is accumulated, which may directly result in the failure to maintain the normal operation of the projector, and at this time, after a relatively short time interval, the cooling fan is detected again, so the step of comparing the voltage increment ratio with the preset risk threshold in this embodiment may further include:
and if the voltage increment ratio is larger than the preset risk threshold, determining a re-detection time according to the current time and the second detection interval time.
It should be noted that, the second detection interval duration may be smaller than the first detection interval duration, for example: the second detection interval duration is set to 2/5 of the first detection interval duration, and if the first detection interval duration is 5 minutes, the second detection interval duration is 2 minutes.
Step S305': and if the system time reaches the re-detection time, returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates.
It will be understood that, if the system time reaches the re-detection time, it means that the cooling fan needs to be detected again at this time, and thus, the process may return to the step S10.
In this embodiment, if the voltage increment ratio is smaller than or equal to a preset determination threshold, the current moment is obtained; determining a re-detection time according to the current time and the first preset detection interval duration; and if the system time reaches the re-detection time, returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates. Because the voltage increment ratio is smaller than or equal to the preset judgment threshold, namely the heat dissipation efficiency of the heat dissipation fan is reduced, when the heat dissipation requirement of the projector is met, the heat dissipation fan is detected again after a certain time interval, so that the heat dissipation fan can be found out in time when the heat dissipation requirement of the projector cannot be met.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a cooling fan monitoring program, and the cooling fan monitoring program realizes the steps of the cooling fan monitoring method when being executed by a processor.
Referring to fig. 5, fig. 5 is a block diagram illustrating a first embodiment of a cooling fan monitoring device according to the present invention.
As shown in fig. 5, a cooling fan monitoring device according to an embodiment of the present invention includes:
The data acquisition module 10 is used for acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates;
the data searching module 20 is configured to search a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature;
and the efficiency monitoring module 30 is configured to determine that the heat dissipation efficiency of the heat dissipation fan is reduced if the current driving voltage is greater than the standard fan driving voltage.
The current driving voltage of the cooling fan in the projector and the current environment temperature of the projector in operation are obtained; searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature; and if the current driving voltage is larger than the standard fan driving voltage, judging that the heat dissipation efficiency of the heat dissipation fan is reduced. When the heat dissipation efficiency of the heat dissipation fan is reduced due to the phenomena of dust accumulation and the like, in order to maintain the normal operation of the projector, the driving voltage of the heat dissipation fan needs to be increased to increase the rotating speed of the heat dissipation fan, and the current driving voltage is compared with the pre-calibrated standard fan driving voltage, so that whether the heat dissipation efficiency of the heat dissipation fan is reduced can be rapidly determined.
Further, the efficiency monitoring module 30 is further configured to calculate a voltage difference according to the current driving voltage and the standard fan driving voltage if the current driving voltage is greater than the standard fan driving voltage; determining a voltage increment ratio according to the voltage difference and the standard fan driving voltage; and if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced.
Further, the efficiency monitoring module 30 is further configured to obtain the current time if the voltage increment ratio is less than or equal to a preset determination threshold; determining a re-detection time according to the current time and the first preset detection interval duration; and if the system time reaches the re-detection time, returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates.
Further, the efficiency monitoring module 30 is further configured to compare the voltage increment ratio with a preset risk threshold, where the preset risk threshold is smaller than the preset decision threshold; and if the voltage increment proportion is smaller than or equal to the preset risk threshold, determining a re-detection time according to the current time and a first preset detection interval duration.
Further, the efficiency monitoring module 30 is further configured to determine a re-detection time according to a current time and a second detection interval duration if the voltage increment ratio is greater than the preset risk threshold, where the second detection interval duration is smaller than the first preset detection interval duration.
Further, the data searching module 20 is further configured to obtain a temperature interval to which the current ambient temperature belongs, and obtain a target temperature interval; and searching a corresponding standard fan driving voltage in a preset standard information table according to the interval identification of the target temperature interval.
Further, the efficiency monitoring module 30 is further configured to generate fan alarm information according to the current ambient temperature, the current driving voltage, and the standard fan driving voltage; and sending the fan alarm information according to a preset alarm mode to prompt a user to overhaul the fan.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the method for monitoring a cooling fan provided in any embodiment of the present invention, which is not described herein again.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (6)
1. The cooling fan monitoring method is applied to a projector and is characterized by comprising the following steps of:
acquiring the current driving voltage of a cooling fan in the projector and the current environment temperature of the projector during operation;
Searching a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature;
if the current driving voltage is larger than the standard fan driving voltage, calculating a voltage difference value according to the current driving voltage and the standard fan driving voltage;
Determining a voltage increment ratio according to the voltage difference and the standard fan driving voltage;
if the voltage increment proportion is smaller than or equal to a preset judgment threshold value, acquiring the current moment;
determining a re-detection time according to the current time and the first preset detection interval duration;
returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates if the system time reaches the re-detection time;
if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced;
the step of determining the re-detection time according to the current time and the first preset detection interval time length includes:
Comparing the voltage increment ratio with a preset risk threshold value, wherein the preset risk threshold value is smaller than the preset judgment threshold value;
If the voltage increment proportion is smaller than or equal to the preset risk threshold, determining a re-detection time according to the current time and a first preset detection interval duration;
And if the voltage increment ratio is larger than the preset risk threshold, determining a re-detection time according to the current time and a second detection interval time, wherein the second detection interval time is smaller than the first preset detection interval time.
2. The method for monitoring a cooling fan according to claim 1, wherein the step of searching for a corresponding standard fan driving voltage in a preset standard information table according to the current ambient temperature comprises:
Acquiring a temperature interval to which the current ambient temperature belongs, and acquiring a target temperature interval;
and searching a corresponding standard fan driving voltage in a preset standard information table according to the interval identification of the target temperature interval.
3. The method for monitoring a radiator fan according to any one of claims 1 to 2, wherein after the step of determining that the radiation efficiency of the radiator fan is reduced if the current driving voltage is greater than the standard fan driving voltage, further comprising:
Generating fan alarm information according to the current environment temperature, the current driving voltage and the standard fan driving voltage;
and sending the fan alarm information according to a preset alarm mode to prompt a user to overhaul the fan.
4. A cooling fan monitoring device, characterized in that the cooling fan monitoring device comprises the following modules:
the data acquisition module is used for acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature of the projector during operation;
the data searching module is used for searching the corresponding standard fan driving voltage in a preset standard information table according to the current environment temperature;
The efficiency monitoring module is used for calculating a voltage difference value according to the current driving voltage and the standard fan driving voltage if the current driving voltage is larger than the standard fan driving voltage; determining a voltage increment ratio according to the voltage difference and the standard fan driving voltage; if the voltage increment proportion is smaller than or equal to a preset judgment threshold value, acquiring the current moment; determining a re-detection time according to the current time and the first preset detection interval duration; returning to the step of acquiring the current driving voltage of the cooling fan in the projector and the current environment temperature when the projector operates if the system time reaches the re-detection time; if the voltage increment ratio is larger than a preset judging threshold value, judging that the heat radiation efficiency of the heat radiation fan is reduced;
the efficiency monitoring module is further configured to compare the voltage increment ratio with a preset risk threshold, where the preset risk threshold is smaller than the preset decision threshold; if the voltage increment proportion is smaller than or equal to the preset risk threshold, determining a re-detection time according to the current time and a first preset detection interval duration; and if the voltage increment ratio is larger than the preset risk threshold, determining a re-detection time according to the current time and a second detection interval time, wherein the second detection interval time is smaller than the first preset detection interval time.
5. A cooling fan monitoring apparatus, characterized in that the cooling fan monitoring apparatus comprises: a processor, a memory and a radiator fan monitoring program stored on the memory and operable on the processor, which when executed by the processor, implements the steps of the radiator fan monitoring method of any one of claims 1-3.
6. A computer-readable storage medium, wherein a radiator fan monitoring program is stored on the computer-readable storage medium, which when executed implements the steps of the radiator fan monitoring method according to any one of claims 1 to 3.
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| CN112162455A (en) * | 2020-10-13 | 2021-01-01 | 深圳市东创科技有限公司 | Projector temperature control method, device and equipment and projector |
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| CN100474212C (en) * | 2006-04-12 | 2009-04-01 | 光宝科技股份有限公司 | Method for controlling fan rotation speed of electronic system and system for implementing the method |
| CN102200816B (en) * | 2010-03-25 | 2015-06-03 | 联想(北京)有限公司 | Computer, heat-radiating module and automatic dust-removing method |
| CN104166299B (en) * | 2014-08-25 | 2016-02-17 | 深圳市雅图新媒体科技有限公司 | Projector heat radiation method and apparatus |
| CN110319044B (en) * | 2018-03-29 | 2020-12-08 | 佛山市顺德区顺达电脑厂有限公司 | Fan testing method |
| CN113126403B (en) * | 2021-04-19 | 2022-07-19 | 深圳市和天创科技股份有限公司 | Heat dissipation control method and system for projector |
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| JP2002174479A (en) * | 2000-12-08 | 2002-06-21 | Matsushita Refrig Co Ltd | Thermoelectric module system of electric refrigerator |
| CN106227313A (en) * | 2016-08-23 | 2016-12-14 | 浙江大华技术股份有限公司 | The duty of a kind of DC radiation fan determines method and device |
| CN112162455A (en) * | 2020-10-13 | 2021-01-01 | 深圳市东创科技有限公司 | Projector temperature control method, device and equipment and projector |
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